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Finding the Fourth Proportional to 4,879.39, 6,733.50 and 2,641.21

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Solution

The fourth proportional to 4,879.39, 6,733.50 and 2,641.21 is: 3,644.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.39 : 6,733.50 = 2,641.21 : x
  2. Step 2: Convert to fraction form
    4,879.39/6,733.50 = 2,641.21/x
  3. Step 3: Cross multiply
    4,879.39x = 6,733.50 × 2,641.21
  4. Step 4: Simplify right side
    4,879.39x = 17,784,587.54
  5. Step 5: Solve for x
    x = 17,784,587.54/4,879.39
  6. Step 6: Final answer
    x = 3,644.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.